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9-(tert-butyl-dimethyl-silanyloxy)-5-[2-furan-3-yl-2-(4-methoxy-benzyloxy)-ethyl]-6-oxo-3-(2,5,5-trimethyl-[1,3]dioxan-2-ylmethyl)-4,5,6,7,8,9-hexahydro-cycloocta[c]furan-5-carboxylic acid methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

304457-21-4

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304457-21-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 304457-21-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,4,4,5 and 7 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 304457-21:
(8*3)+(7*0)+(6*4)+(5*4)+(4*5)+(3*7)+(2*2)+(1*1)=114
114 % 10 = 4
So 304457-21-4 is a valid CAS Registry Number.

304457-21-4Relevant academic research and scientific papers

Teubrevin G and teubrevin H: The first total syntheses of rearranged neo-clerodanes including solutions to the problems of chirality merger and furan ring assembly

Paquette,Efremov

, p. 4492 - 4501 (2007/10/03)

Total syntheses of teubrevins G (2) and H (3) are described. The reported strategy relies on a highly regioselective cycloaddition-fragmentation approach to the construction of a 2,3,4-trisubstituted furan and features efficient ring-closing metathesis ch

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